See quiver in Webster's New World Roget's A-Z Thesaurus II
verb
To move to and fro in short, jerky movements:
quake, quaver, shake, shiver1, shudder, tremble, twitter, vibrate. See repetition
noun
A nervous shaking of the body:
quake, shake, shiver1, shudder, thrill, tic, tremor, twitch. See repetition
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